Simply denoise: wavefield reconstruction via jittered undersampling
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Basics of compressive sampling
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Hennenfent and Herrmann: Jittered
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Outline
Theory
Subsections
Basics of compressive sampling
Recovery by sparsity-promoting inversion
Favorable recovery conditions
Fourier-domain undersampling artifacts
Regular (under)sampling
Random undersampling according to a discrete uniform distribution
The practical requirement of maximum gap control
Uniform jittered undersampling on a grid
Definition of the jittered grid
Fourier-domain artifacts of the jittered grid
Regular undersampling (
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Optimally-jittered undersampling (
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Jittered undersampling (
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Controlled recovery experiments for different sampling schemes
2007-11-27
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